Hot extrusion billet of seamless steel pipe can be forged billet, rolled billet, slab, billet centrifugal casting and so on. Short or long blank blank in the machine shop after peeling, sawing, drilling deep holes, after turning face and chamfering into the extrusion line.
热挤压钢管用于生产热挤出过程以制造无缝钢管。热挤出广泛用于铝，铜和其他有色金属管和型材的生产。热挤出钢的生产两种特殊管和型材，难以用于生产冷挤出或挤出固体和温暖的孔（通孔或盲孔）碳钢和合金钢部件，这样作为具有厚头，桶，容器等的杆。热挤出尺寸精度和表面处理比热锻造部件更好，但仍需要通过一部分一般的整理或加工。
Hot extrusion technology is a kind of the metal above the recrystallization temperature of extrusion, the tube billet from a die extrusion, in order to get die shape cross section pipe metal forming method. In the hot extrusion process (from the pipe to arakawa tube), the tube billet are deformation under the three to compressive stress state. This not only can solve the problem of less-deformable steel pipe forming, but also can avoid tubes inside and outside the surface defects caused by tensile stress. So hot extrusion molding method is particularly suitable for all kinds of alloy steel, stainless steel, high strength steel, nickel base superalloy profiles, such as pipe forming.
规范，标准和识别Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.
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